save project

diy.py

@@ -2,13 +2,19 @@
 #a=open(r"C:\Users\EDZ\Desktop\pyt\123.txt",'w',encoding='utf-8')
 #a.write('小兰,12本,小丽,11本,李文,9本,张伟,16本')
 #a.close()
-#with open(r"C:\Users\EDZ\Desktop\pyt\123.txt",'a',encoding='utf-8')as a:
-    #a.write('小强,12本\n')
-    #a.write('李明,15本\n')
+# with open(r"C:\Users\EDZ\Desktop\pyt\123.txt",'a',encoding='utf-8')as a:
+#     a.write('小强,12本\n')
+#     a.write('李明,15本\n')
+c=''
 with open(r"C:\Users\EDZ\Desktop\pyt\123.txt",'r',encoding='utf-8')as a:
     b=a.read()
     #for data in b:
-    if '小强,10本' in b:
+    if '小强,12本' in b:
         print('数据1在')
-    if '小兰,12本' in b:
-        print('数据2在')
\ No newline at end of file
+        c=b.replace('小强,12本','小强,11本')
+    print(c)
+with open(r"C:\Users\EDZ\Desktop\pyt\123.txt",'w',encoding='utf-8')as a:
+    a.write(c)
+    print(a)
+
+